Float tube



FIG. 1 is a perspective view of a float tube showing my new design;

FIG. 2 is a first side elevational view thereof, the opposite side elevational view being a mirror image thereof;

FIG. 3 being a front elevational view thereof;

FIG. 4 being a rear elevational view thereof;

FIG. 5 being a bottom plan view thereof; and,

FIG. 6 being a top plan view thereof. 

The ornamental design for a float tube, as shown and described. 